EP 2100671 A1 20090916 - Method and device for nebulising high-viscosity liquids with minimal fallback
Title (en)
Method and device for nebulising high-viscosity liquids with minimal fallback
Title (de)
Verfahren und Vorrichtung zum Zerstäuben hochvisköser Flüssigkeiten mit minimalem Fallback
Title (fr)
Procédé et dispositif pour nébuliser des liquides à haute viscosité avec un minimum de rechange
Publication
Application
Priority
- EP 08004580 A 20080312
- EP 09154851 A 20090311
Abstract (en)
Method of controlling the evaporation of the droplet cloud resulting from nebulization of a liquid expelled from a liquid droplet spray device, wherein said liquid droplet spray device comprises a reservoir for containing the liquid, a perforate membrane plate, fluid interface means for feeding the liquid from the reservoir to the membrane plate, ultrasound generating means for acting on the supplied liquid to cause it to be expelled as a spray of droplets through orifices of said membrane plate and electronic control means for controlling the activation of the ultrasound generating means. The method comprises the steps of: providing the liquid droplet spray device, supplying the liquid to a space below the perforated membrane plate, providing a pulsed driving signal having a period T for activating the ultrasound generating means, activating the ultrasound generating means for a period of time T on so as to cause the spray of droplets to be expelled at a maximum spray cloud height, T on consisting of T ona and T onb , de-activating the ultrasound generating means for a period of time T off , where T off ¥ T on + T evap , wherein T evap is the time that is required for the sprayed cloud of a given liquid produced during T on to fully evaporate, wherein T ona is the time required to ultrasonically energise the liquid, T onb is the time to spray the liquid, and T ona lasts from less than tens of milliseconds to several seconds, whereby the amount of unevaporated liquid that falls back on a surface surrounding said liquid droplet spray device is minimised.
IPC 8 full level
B05B 17/06 (2006.01); A01M 1/20 (2006.01); H01L 41/04 (2006.01)
CPC (source: EP US)
A01M 1/205 (2013.01 - EP US); A61L 9/14 (2013.01 - EP US); B05B 17/0646 (2013.01 - EP US); B05B 17/0669 (2013.01 - EP US)
Citation (applicant)
- US 2005037945 A1 20050217 - GYGAX HANS RUDOLF [CH], et al
- EP 1129741 A2 20010905 - MICROFLOW ENG SA [CH]
- US 4085893 A 19780425 - DURLEY III BENTON A
- US 5173274 A 19921222 - OWEN THOMAS E [US]
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- US 5894001 A 19990413 - HITZLER ALFRED [DE], et al
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- EP 2047914 A1 20090415 - MICROFLOW ENG SA [CH]
Citation (search report)
- [XDY] US 2003146292 A1 20030807 - SCHRAMM HEATHER R [US], et al & US 6296196 B1 20011002 - DENEN DENNIS J [US], et al
- [XY] EP 1502607 A2 20050202 - JOHNSON & SON INC S C [US] & US 6296196 B1 20011002 - DENEN DENNIS J [US], et al
- [XY] WO 03098971 A1 20031127 - JOHNSON & SON INC S C [US], et al & US 6296196 B1 20011002 - DENEN DENNIS J [US], et al
- [YD] EP 1129741 A2 20010905 - MICROFLOW ENG SA [CH]
- [AP] WO 2008098908 A1 20080821 - ZOBELE HOLDING SPA [IT], et al
- [AP] WO 2008039393 A2 20080403 - PROCTER & GAMBLE [US], et al
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
EP 2100670 A1 20090916; AT E495824 T1 20110215; DE 602009000581 D1 20110303; EP 2100671 A1 20090916; EP 2100671 B1 20110119; JP 2009214104 A 20090924; JP 2014138933 A 20140731; JP 5546782 B2 20140709; US 2009230208 A1 20090917; US 8011599 B2 20110906
DOCDB simple family (application)
EP 08004580 A 20080312; AT 09154851 T 20090311; DE 602009000581 T 20090311; EP 09154851 A 20090311; JP 2009060323 A 20090312; JP 2014016613 A 20140131; US 40306609 A 20090312